General Science/Level-1/Set-1/Paper-01

1. Radiations infra-red region may be detected with the help of
a)barometer
b)bolometer
c)spectrometer
d)sonometer
Ans:B bolometer

2. Simple astronomical telescope consist of two
A)convex lenses
B)concave lenses
C)one convex lens and other concave lens
D)Plano convex lenses
Ans: a convex lensses

3.A yellow object when seen through a red glass appears as
A)yellow
B)red
C)white
D)black
Ans.d black

4.X rays are emitted when
A)high energy electrons hit a substance of low molecular weight
B)high energy electrons hit a substance of high molecular weight
C)low energy electons hit any substance
D)low energy electons hit a substance of high molecular weight
Ans:b

5. Which of the following can be deflected by a magnet?
A)radio waves
B)X rays
C)beta rays
D)ultra violet rays
Ans.B beta rays